Telephone desk set.



P. 0.;BURNS.

TELEPHONE DESK SET.

APPLICATION FILED MAR. 9, 1905.

1,011,405. Patented Dec.12,19 11.

2'8HBETS-SHEET l. a

. P. G. BURNS.

v TELEPHONE DESK SET.

APPLiOATION PILBD MAB..9, 1905.

Patented Dec. 12, 1911.

2 SHE-ETSSHEET 2.

NQl MH-W 1 UNITED STATES PATE OFFICE.

PETE 1R C. BURNS, OF CHICAGO, ILLINOIS,

ASSIGNOR 'IO THE AMERICAN ELECTRIC I TELEPHONE COMPANY, OFCHICAGO,ILLINOIS, A CORPQRATION OF NEW JERSEY. I

TELEPHONE DESK sn'r.

'Specification of Letters iatent.

Patented Dec. 12, 1911.

I Application filed March 9, 1905. Serial No. 249,219.

Tooll whom it may concern: Be it known'that I, PETER CLBURNS, a citizenof the United States of America, and resident ofChicago, Cookcounty,Illinois, 5 have invented a certain new and useful Improvement inTelephone Desk Sets, of which thefollowing is a specification.

' A subscribers telephone set includes a transmitter and a receiversupported in suit- -v able manner. My invention relates to such atelephone set, and more particularly to the supporting means formounting the transmitter and receiver in position for con- 2 and tobeadjusted toward and aWay from the desk, table, wallor other structureupon. which it is mounted, and whereby, in connection with such readyadjustment of the telephone set, the transmitter and the-hookswitch,together with the mounting and binding-post "connections therefor, maybe removedas a'unit from a tubular or hollow [standard upon and in whichthe same are mounted, and which tubular or hollow standard is in turnreadily removable from the end of the extensible and horizontallyswinging supporting arm bywhich the telephone set is carried and held inpositlon for convenient use. v

It is also an object, of course, to provide i-certain details andfeatures of construction,

-together with certain features of improvement, tending to increase thegeneral. efiiciency and serviceability of a' telephone set ofthisparticular character. I

1 -To the foregoing and other useful ends, my invention consists inmatters hereinafter setforth and claimed. 7

In the accompanyingdrawings Figure 1 Q is a perspective of a telephoneset and swing ing support thereon. embodying the principles of myinvention. Fig. 2 is a side ole-- vation of the telephone set andsupport (shown in Fig. 1, but showing the extensible.

' swinging arm extendedorlengthened to the tension or adjustment.large'd detail view illustrating the manner 1n which the transmitter,hook-switch and the mounting for-the same are removableas support, forlocking the transmitter and-its in POSltIOH at the upper end of the saidtubular or hollow standard. Fig. 5 is an tubular or hollow standardshowing the plate or support u on which said swinging and endwise extensible arm can be mounted.

or approved construction. Preferably, the send transmitter'is providedwith a joint or p1votalconnection a by which it is swingthe mounting'C.It will be observed that the lower portion 0 ofsaid mounting ispreferably like a bar or plate in shape, and exc of the said mounting G,suitable bindingpost connections c are provided, of any suitment of thecircuits for the telephone set.

inclosed portion 'of the mounting, and is provided, preferably, with anarm e adapted to operate the switch-springs 6 e and e; and

switch-hook is pivoted at c, and has its As illustrated, the saidswitch-hook," when clamping device for securing the same to the outerend of the swinging arm of the structure bywhich the telephone set iscar-' rled. Fig. 6 shows one form .of .bracket---;

As thus illustrated, the transmitter A and the receiver B can be of anysuitable known.

ingly connected to the upper end or head of-- bayonet-joint consistingofthesaid screw and the notch d. Upon the inclosed portion fun limit fitsendwisie g 11d nal six? an en a unit from the tubular or hollow standardupon and in which the same are supported. Fig. 4: is an enlarged detailview showing. the notch at the upper, end of the tubular mounting, andother parts carried thereby,

enlarged horizontal section through the said tends downwardly within thetubular or holable character, and according to the arrange- Aswitch-hook E is also carried by the said it will be understood, ofcourse, that the said downward movement limited by a stop e.

the various parts of the set are assembled together, projects through aslot al in the upper end-portion of the tubular support or inclosingmember. D. In the arrangement shown, the flexible cord e connects there- .-ce1ver B with the proper binding-posts or other terminals on thelower end of the mounting or block of insulation 0* at the lower end ofthemounting. The cord (2 is also provided with suitable-connection withthe said binding-posts or terminals, and can lead to the binding-postsor terminals of an induction coil, or other devices, in the usualmanner; the said hook-switch being employed, of course, for opening andclosing the circuit of the transmitter, and, if used in a common batterysystem, for opening and closing the subscribers line circuit. The saidcords e and e enter the tubular support or inclosure D through anopening (I in its lower end, said opening being preferably less indiameter than the internal diameter of the tubular support or inclosure,and a ring or washer d of insulation being preferably interposed betweenthe-lower end of the mounting C and the ledge or flange d formed bydrawing inward the metal at the lower end of the tube. In this way thetubular supporting or inclosing member D presents a neat and symmetricalappearance,- being adapted to support and inclose the I mounting andswitch-springs and circuit terminals, and provided at its smooth andshapely lower end with an opening only large enough to admit the twoflexible cords, as shown and described. The transmitter and'hook-switchthus constructed and organized into a compact and unitarystructureincluding the receiver-are all readily removable as a unit fromthe outer or distal end of, the horizontally swinging andendwiseextensible arm or supporting member F and, as will be observed,the transmitter, hook-switch, circuit terminals and the mounting for thesame, are all readily removableas a unit from the tubular support orinclosing member D. The said swinging and endwise extensible arm Fconsists preferably of a lazy-tongsdevice, as shown, provided atitsouter end with a vertical member or standard f adapted to serve also asa guide for the upper end portion f of the said lazy-tongs device. Thelower end-portion f can be secured to said vertical member or guide bymeans of a pin 'or rivet f. A clip or clamping device G is em ployed forsecuring the tubular or hollow supporting member D to the cylindricalsupporting an: uiding member f. As shown more clearly in Fig. 5, thesaid clip or clamping device G consists preferablyof bWO pieces of flatstrap metal bent in such manner as to provide a split collar 9 and apair of clamping jaws g and between the said split collar and theclamping aws there drical and hollow supporting or inclosing member D,the tightening of the screw 9 serving to produce the requisite grip orclamping action at both points or places. At its other end, the saidlazy-tongs is sup ported upon a stationary support or bracketplate Hadapted to be secured to a wall or other vertical surface; or, ifdesired, the base or bracket-plate I, as shown in Fig. 6, may be adaptedto rest upon or be secured to the top of a desk or table, or to anyhorizontal surface. In either case, however, the said'base orbracket-plate is preferably provided with a rod-like standard J uponwhich the upper and lower end-portions f and f are mounted to turn orrotate. The lower portion f rests upon a shoulder j and is held againstupward movement by a pin 1' inserted through the rod-like standard JAnother pin, j inserted through the said rod-like standard J, acts as astop to limit the downward sliding motion of the lazyt-ongs portion f,it being observed that this portion f is adapted to slide up and downcan, of course, be positioned at any desired point, so as to permit thelazy-tongs F to either straighten out entirely, and thus reach themaximum of their endwise extensibility or adjustment, or to onlypartially thus extend, as shown in Fig. 2. As shown in Fig. 1, however,the arrangement is preferably such that the said lazy-tongs device iscapable of collapsing or contractingto the full limit of its movement oraction in this direction, so as to permit the telephone set to be pushedback as nearly as possible to the standard J when the instruments arenot being used. When the instruments are to be used, the lazy-tongs canbe pulled out in any desired direction, thus facilitating the use of thetelephone instruments; and when the user is through telephoning, theentire set can then be pushed back toward the standard J and swungaround to any point where the set as a whole will be completely out ofthe way and not liable to interfere with other matters. or with theusers convenience in general.

In the arrangement shown, and involving the rod-like standards at eachend of the lazy-tongs, to which the lower end-portions of the same aresecured, while the upper end-portions thereof are free to slide up anddown upon the upper portions of such rodlike standards, so that thelatter serve as both supports and guides, a very strong and rigid,entirely satisfacto'ry and most serviceable supporting arrangement isprovided for the telephone set. As shown, the arms or members of thelazy-tongs are pivotally connected at their ends by means of f f n f fand it is. preferable to interpose washers, of any suitable character,between the members of the lazy-tongs where they cross each other andwhere they are pivotally connected at their ends.

Smaller washers, as shown, may be applied to the outer ends of allrivets, so that these rivets may have their outer ends upset or rivetedover upon the'washers, rather than directly upon the members of thelazy-tongs and other parts. v

The lazy-tongs can be readily detached from the telephone set byloosening the screw 9 and also from the standard or supporting member atthe other end, by simply pushing out the pins f and j ,j The knobs onthe ends of the rods 7' and J can be removed, and the tongs can bedisconnected from the rod f' by pushing out the pin F. In fact, all. thedifferent parts are readily assembled and taken apart, and any of theparts can be easily removed and replaced in case it becomes desirable tomake repairs or substitute new parts for those impairedby usage oraccident. As a further advantage, it will be seen that the clamping de-'vice G can be clamped at any desired position in its range of horizontalswinging adjustment upon the rod-like standard f, that is to say, thetelephone instruments can be adjusted about a vertical axis locatedbetween the instruments and the outer end of the swinging and endwiseextensible arm or lazy-tongs F, so that the most convenient position canalways be found for using the telephone instruments.

The transmitter, receiver, hook-switch and the inclosing means of thelatter are easily and readily removable as a unit from the end of theswinging or adjustable arm. Furthermore, these elements are also readily adjustable as a unit in a vertical direction, relatively to the endof the adjustable arm, the telephone set being thereby adapted for bothsidewise and up and down adjustment. Again, the desk set can be removedfrom the end of the adjustable arm, without in any way dismembering ordisturbing the continuity of the lazy-tongs de vice or the adjustablearm, thereby permit-- ting considerable variation in the construction orcharacter of the telephone set carried at the end of the arm.

It will be seen that the rivets f never fall below the lower end of thetube D, so that nothing ever projects downwardly in a manner tointerfere with the back and forward movementsof the lazy-tongs. As thecords enter freely at the lower end of said tube, they are not liable tobecome entangled, inasmuch as the tube is not engaged or supported atits lower end, but rather at a point between its upper and lower ends,

' thus leaving the lower end of said tube free from mechanicalconnections. The bottom portions of the lazy-tongs, are fixed to therods f and J, but the upper portions of the said lazy-tongs have asliding engagement with said rods, whereby. the bottom of the entiretelephone and supporting structure always remains at the same level.

IVhat I claim as my invent-ion is:

1. In a telephone support, an uprighttube upon the upper end of whichthe telephone instruments are carried, an upright cylindric member atone side of said tube, and a clamp consisting of a pair of jaws formedat one end to grip the tube and at the other end to grip the saidmember, and a screw extending'through the two jaws at a point betweenthe opposite ends thereof, said tube and member being unconnected exceptby said clamp.

2. In a telephone support, an upright tube upon the upper end of whichthe telephone instruments are carried, an upright rod adjacent saidtube, a lazy-tongs having a fixed engagement and a sliding engagementwith said rod, and a clamp gripping the tube and engaging thesaid rod ata point between said fixed and sliding portions of the said lazy-tongs,said tube and rod being unconnected except by said clamp.

3. In a telephone desk set, the combination of a tubular support,telephone instruments carried at the upper end of said tubular support,cord connections entering the lower end of said support, a clamp forgripping thetubular support laterally, and

means comprising crossed and pivoted arms for movably supporting saidclamp, the said support being adjustable in said clamp.

Signed by me at Chicago Cook county,

Illinois this -217th day of February 1905.

PETER animus.

W'itnesses MAX IV. ZABEL, RB. Enron.

